I used revolt, and its far from discord sadly, i heard the Roblox one but eeeh, had some issues there aswell, are there not anything else?
Matrix - you can also add bots to expand the core functionality.
Any #XMPP-based solution. Check out Snikket.
Matrix/Element has a beta that allows p2p calling and group calling besides what the Matrix platform is known for (chat, rooms, file transfer,…) “Element Call - Florian Heese” (Youtube) goes into the details - might be of interest for you.
TeamSpeak. We fired up a private Teamspeak Server on a Raspberry Pi. But there are also many Public Servers to join. Or you could also rent a private one together, there are many providers for it and it doesn’t cost much. Teamspeak v6 also now has similar features to Discord, Screen Sharing and so on… Latency and voice quality have always been better on TeamSpeak and therefore the preferred choice for pro gamers and on tournaments.
What are the main issues with revolt? Have not tried it yet. Looked promising at a first glance. All just empty marketing?
Notfication is pretty bad, pictures dont really work to send, which kinda turn me off, otherwise it would be good for me! And the phone app is a mess
I don’t know the specifics, but I heard matrix is a thing.
From my own looking into this, only Matrix seems close and it’s still not quite there.
I just checked Mattermost, Zulip and Rocketchat but all of those seem to be based outside of Europe too legally speaking.
I am looking to an alternative to Slack, which may cover similar needs.
Right now, it boils down to:
- Mattermost (US-made, but open source)
- Rocket.chat (US-made, but open source)
- Whaller (EU-made, but not open source)
